Nsfs324engsub Convert020052 Min Best -

is a Japanese adult video (JAV) production from the studio.

ffmpeg -i input.mkv -ss 00:00:20.052 -t 00:02:00 -c:v libx265 -crf 18 -c:a aac -b:a 256k -c:s copy output.mp4 nsfs324engsub convert020052 min best

You’ve downloaded a video file—possibly labeled "NSFS-324"—and an accompanying English subtitle file (.srt, .ass). Your goal: convert this video to a more compatible format, embed or repackage the subtitles, perhaps trim or adjust a specific scene at the 2-minute, 52-frame mark ( 02:00:52 ), and achieve the possible quality while minimizing file size. is a Japanese adult video (JAV) production from the studio

Your mention of engsub means you have an external English subtitle file. This is common in fan communities. embed or repackage the subtitles

ffmpeg -i input.mkv -ss 02:00:52 -c copy output.mkv